Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 8149928 | Receivers for cycle encoded signals Some embodiments include a transmitter having a cycle encoding circuit to receive a data input signal and to provide a full cycle encoded signal in response thereto by continuously joining portions of different encoding signals. Some of the encoding signals have a d... | 04/03/2012 |
| 8050332 | System and method for selectively performing single-ended and differential signaling In a communication system, data is selectively transmitted using single-ended or differential signaling. The data is transmitted in relation to a plurality of clock signals having different relative phases. When the data is transmitted using single-ended signaling, ... | 11/01/2011 |
| 7983347 | Multiple differential transmission system including signal transmitter and signal receiver connected via three signal lines In a signal transmitter for a multiple differential transmission system including the signal transmitter, a signal receiver, and a signal transmission path including first to third signal lines, first to third differential driver transmit first to third output signa... | 07/19/2011 |
| 7957472 | Enhanced signaling sensitivity using multiple references A receiver circuit uses two or more comparators to detect the received data signal. Each comparator is set to compare the data signal to a different reference signal. The output signals of the comparators are received into a detector circuit, which provides a third ... | 06/07/2011 |
| 7720159 | Receivers for cycle encoded signals In some embodiments, the inventions includes a transmitter including a cycle encoding circuit to receive a data input signal and to provide a full cycle encoded signal in response thereto by continuously joining portions of different encoding signals. Some of the en... | 05/18/2010 |
| 7558326 | Method and apparatus for sending auxiliary data on a TMDS-like link A communication system including a transmitter, a receiver, and a TMDS-like link, in which video data and auxiliary data (typically including timing data associated with other auxiliary data) are transmitted from the transmitter to the receiver, or in which video da... | 07/07/2009 |
| 7391813 | Digital wireless communications device A digital wireless communications device enabling call distance to be increased while avoiding mute processing as far as possible, even if code error occurs in an ADPCM code. The digital wireless communications device may be configured to include: an error detector ... | 06/24/2008 |
| 7376555 | Encoding and decoding of overlapping audio signal values by differential encoding/decoding Coding a signal is provided, wherein a first set of values is provided related to subsequent times in a first time interval of the signal, a second set of values is provided related to subsequent times in a second time interval of the signal, the first time interval... | 05/20/2008 |
| 7369476 | Device for reading from or writing to optical recording media having a control unit for a data slicer The present invention relates to a device for reading from and/or writing to optical recording media (1) having an optical scanner (2) for scanning the recording medium (1) by means of a light beam (3) and for generating scanning signals ... | 05/06/2008 |
| 7355532 | voltage level coding system and method We describe a voltage level coding system and method. The voltage level coding system includes a level encoder having an input to receive data segments coded using a first code and an output to supply second data codes indicating one of 2N plus at least o... | 04/08/2008 |
| 7343539 | ARA type protograph codes An apparatus and method for encoding low-density parity check codes. Together with a repeater, an interleaver and an accumulator, the apparatus comprises a precoder, thus forming accumulate-repeat-accumulate (ARA codes). Protographs representing various types of ARA... | 03/11/2008 |
| 7339502 | Method and device for transmitting data over a plurality of transmission lines In the case of a method and a device for transmitting data units by way of a transmission medium that comprises at least three adjacent transmission lines, first of all a plurality of codes is supplied. Each code has a number of code sections that corresponds to the... | 03/04/2008 |
| 7336713 | Method and apparatus for encoding and decoding data A DPCM operation which can reduce the size of differential data and a method and an apparatus for encoding data using the DPCM operation are provided. A method for generating differential data includes generating differential data by performing a DPCM operation on q... | 02/26/2008 |
| 7324030 | Multiple stage delta sigma modulators A delta sigma modulator which employs a plurality of accumulators with non-power-of-2 modulus. The accumulators may consist of a primary non-power-of-2 modulus accumulator and a secondary non-power-of-2 modulus accumulator. The number of bits in the primary accumula... | 01/29/2008 |
| 7315817 | Sound encoder and sound decoder An sound encoder accepts a sound signal and then produces a plurality of codes which represent the sound signal on a frame-by-frame basis. The sound encoder determines the order in which the plurality of codes is to be multiplexed into a multiplexed code based on on... | 01/01/2008 |
| 7304990 | Method of encoding and transmitting data over a communication medium through division and segmentation A method of encoding and transmitting data over a communication medium, comprising, providing a file; dividing said file into a plurality of buckets; segmenting each bucket into a et of blocks; selecting a subset of blocks from a bucket; generating a packet by combi... | 12/04/2007 |
| 7299012 | Circuit to add and subtract two differential signals An electrical circuit to add and subtract differential input signals may be implemented using distributed differential transmission lines having a length substantially equal to one quarter of a wavelength of the differential input signals according to an effective e... | 11/20/2007 |
| 7298783 | Method of compressing sounds in mobile terminals A method of compressing sounds in mobile terminals according to the present invention transforms pulse code modulations (PCM) codes, which are source data of bell sounds using recorded sounds or voice memos and are generated by sampling the sounds, through applying ... | 11/20/2007 |
| 7295809 | Portable audio playback device with bass enhancement Wirelessly linking a portable audio device to an external audio system permits the external audio system to generate audible signals that enhance local playback of audio by the portable device. For example, the portable device wirelessly transmits lower frequency co... | 11/13/2007 |
| 7292164 | Enhanced data converters using compression and decompression An enhancement that reduces the digital interface rate of analog-to-digital (A/D) and digital-to-analog (D/A) converters through the use of compression and decompression is described. Improved A/D converters compressing a sampled version of an A/D converter's analog... | 11/06/2007 |
| 7289951 | Method for improving the coding efficiency of an audio signal The invention relates to a method for improving the coding accuracy and transmission efficiency of an audio signal. According to the method, a part of the audio signal to be coded is compared with earlier stored samples of the audio signal and a reference sequence o... | 10/30/2007 |
| 7289781 | Device for receiving digital signals A device for receiving digita1 signals comprising at least one receiving antenna for receiving signals, a measuring means for determining parameters of relevance to signal quality of signals received by the antenna, and a digitizer for the signals received by the an... | 10/30/2007 |
| 7280056 | Sigma-delta converter and use thereof A sigma-delta converter has a signal input for receiving a data word. A clock signal input is designed to supply a clock signal. The sigma-delta converter includes a first clocked-operation accumulator stage whose input side is connected to the signal input, and at ... | 10/09/2007 |
| 7277420 | Temporal alignment of codec data with wireless local area network RF slots A wireless local area network (WLAN) transceiving integrated circuit services voice communications in a WLAN with at least one other WLAN device. The WLAN transceiving integrated circuit includes a WLAN interface, an input buffer, a transcoder, and a processor. The ... | 10/02/2007 |
| 7277498 | Mapping method of code word with QAM modulation In the code word mapping operation of a radio communication system, mapping patterns are provided for different S/N ratios, the code word bits produced from a coder are not equally assigned to multi-level modulation bits, but weighted according to the resistance of ... | 10/02/2007 |
| 7276954 | Driver for switching device A driver for a switching device has a plurality of driver circuits for driving the switching device and a control circuit. The control circuit selectively operates the driver circuits in response to a plurality of predetermined drive modes. Alternatively, a driver f... | 10/02/2007 |
| 7269212 | Low-latency equalization in multi-level, multi-line communication systems Low-latency equalization mechanisms for multi-PAM communication systems are disclosed that reduce delay and complexity in signal correction mechanisms. The equalization mechanisms tap into input signals for a multi-PAM signal driver, and compensate for attenuation a... | 09/11/2007 |
| 7269224 | Apparatus and methods for providing efficient space-time structures for preambles, pilots and data for multi-input, multi-output communications systems Apparatus and methods for providing efficient space-time structures for preambles, pilots and data for multi-input, multi-output (MIMO) communications systems are provided. One such embodiment includes providing a computer program that includes logic configured to p... | 09/11/2007 |
| 7266152 | Digital signal processing device and digital signal processing method A device for performing predetermined processing on an input signal that may have a signal amplitude of more than one bit. The input signal is obtained by subjecting one-bit serial signals to predetermined signal processing, wherein the signal amplitude of more than... | 09/04/2007 |
| 7249271 | Data transfer control device and electronic instrument A data transfer control device includes an OUT-transfer transmitter circuit which transmits OUT data by driving a serial signal line, a clock-transfer transmitter circuit which transmits a clock signal CLK by driving a serial signal line, a PLL circuit which generat... | 07/24/2007 |
| 7245245 | Digitizer and related charge pump circuit A digitizer and a related charge pump are provided. The charge pump includes an input coupled to the output of the comparator and receiving the output of the comparator as a control signal of charging and discharging, three current sources, and three switches, each ... | 07/17/2007 |
| 7246296 | Encoding device for performing serial concatenated coding The present invention is particularly applied to serial concatenated coding and serial concatenated trellis coded modulation. In second encoding 107, which is inner coding, a sequence that is not encoded or that is encoded so as to produce a finite impulse re... | 07/17/2007 |
| 7242339 | Programmable reference voltage generator A reference generator circuit has a resistor string between the potentials of the power supply voltage that is partitioned into a top string, a middle string, and a bottom string. PFET devices are used to couple the positive power supply voltage a selected node of t... | 07/10/2007 |
| 7236545 | Chip blanking and processing in SCDMA to mitigate impulse and burst noise and/or distortion Systems and methods are disclosed for detecting temporary high level impairments, such as noise or interference, for example, in a communications channel, and subsequently, mitigating the deleterious effects of the dynamic impairments. In one embodiment, a prelimina... | 06/26/2007 |
| 7230449 | Data receiver with a programmable reference voltage to optimize timing jitter Pseudo-differential drivers and receivers are used to communicate data signals between two or more IC chips. The data paths are aligned using programmable delay circuitry to de-skew each data path. A programmable reference generator is used to generate a reference v... | 06/12/2007 |
| 7225136 | Data compression and expansion of an audio signal A data compression apparatus for data compressing an audio signal includes an input terminal (1) for receiving the audio signal, a 1-bit A/D converter (4) for A/D converting the audio signal so as to obtain a bitstream signal, a lossless coder (10 | 05/29/2007 |
| 7224747 | Generating coefficients for a prediction filter in an encoder A transmitter is disclosed for transmitting a transmission signal via a transmission medium. The transmitter derives a prediction signal from the digital information signal in dependence on an array of prediction filter coefficients. The array of prediction filler c... | 05/29/2007 |
| 7209040 | Homodyne RFID receiver and method An RFID circuit comprising an RF carrier signal source, a hybrid coupled to the RF carrier signal source operable to generate first and second phase-shifted RF carrier signals, first and second mixers coupled to the hybrid each operable to multiply a respective one ... | 04/24/2007 |
| 7203262 | Methods and apparatus for signal modification in a fractional-N phase locked loop system A phase locked loop includes a buffer that synchronizes the transmission of the new count value to the completion of the previous count to avoid errors caused by dithering. The buffer is connected to a count input of the counter and transmits the new count upon rece... | 04/10/2007 |
| 7197522 | Bi-quad digital filter configured with a bit binary rate multiplier The invention is directed to a bi-quad filter circuit configured with sigma-delta devices that operate as binary rate multipliers (BRMs). Unlike conventional bi-quad filter circuits, the invention provides a bi-quad filter configured with a single-bit BRM. In anothe... | 03/27/2007 |
